The ATEN USB-to-Serial RS-232 Hub offers a simple and cost-effective solution for adding up to four RS-232 serial ports to USB-enabled devices like computers, laptops, and handhelds. Ideal for communication and automation applications, it supports up to 115.2 Kbps data transfer rate per port and features hot-swapping, plug-and-play functionality, and 16KV ESD protection for reliable performance.